scholarly journals Cooperation and information replication in wireless networks

2016 ◽  
Vol 374 (2062) ◽  
pp. 20150123 ◽  
Author(s):  
Konstantinos Poularakis ◽  
Leandros Tassiulas
Keyword(s):  
Network Performance ◽  
Access Network ◽  
Network Architectures ◽  
Backbone Networks ◽  
Network Bandwidth ◽  
Multicast Service ◽  
Radio Access ◽  
Maximum Benefit ◽  
Wireless Medium ◽  
Cell Tower

A significant portion of today's network traffic is due to recurring downloads of a few popular contents. It has been observed that replicating the latter in caches installed at network edges—close to users—can drastically reduce network bandwidth usage and improve content access delay. Such caching architectures are gaining increasing interest in recent years as a way of dealing with the explosive traffic growth, fuelled further by the downward slope in storage space price. In this work, we provide an overview of caching with a particular emphasis on emerging network architectures that enable caching at the radio access network. In this context, novel challenges arise due to the broadcast nature of the wireless medium, which allows simultaneously serving multiple users tuned into a multicast stream, and the mobility of the users who may be frequently handed off from one cell tower to another. Existing results indicate that caching at the wireless edge has a great potential in removing bottlenecks on the wired backbone networks. Taking into consideration the schedule of multicast service and mobility profiles is crucial to extract maximum benefit in network performance.

scholarly journals Special issue on radio access network architectures and resource management for 5G

2016 ◽  
Vol 18 ◽  
pp. 61-63
Author(s):  
J. Pérez-Romero ◽  
X. Lagrange ◽  
J. Nasreddine ◽  
J. Marquez-Barja
Keyword(s):  
Resource Management ◽  
Access Network ◽  
Network Architectures ◽  
Special Issue ◽  
Radio Access Network ◽  
Radio Access

scholarly journals Enhancing Radio Access Network Performance over LTE-A for Machine-to-Machine Communications under Massive Access

2016 ◽  
Vol 2016 ◽  
pp. 1-16
Author(s):  
Fatemah Alsewaidi ◽  
Angela Doufexi ◽  
Dritan Kaleshi
Keyword(s):  
Network Performance ◽  
Success Probability ◽  
Access Network ◽  
Random Access ◽  
Base Station ◽  
Radio Access Network ◽  
Machine To Machine ◽  
Radio Access ◽  
Access Channel ◽  
Control Traffic

The expected tremendous growth of machine-to-machine (M2M) devices will require solutions to improve random access channel (RACH) performance. Recent studies have shown that radio access network (RAN) performance is degraded under the high density of devices. In this paper, we propose three methods to enhance RAN performance for M2M communications over the LTE-A standard. The first method employs a different value for the physical RACH configuration index to increase random access opportunities. The second method addresses a heterogeneous network by using a number of picocells to increase resources and offload control traffic from the macro base station. The third method involves aggregation points and addresses their effect on RAN performance. Based on evaluation results, our methods improved RACH performance in terms of the access success probability and average access delay.

scholarly journals Deploying an NFV-Based Experimentation Scenario for 5G Solutions in Underserved Areas

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1897
Author(s):  
Victor Sanchez-Aguero ◽  
Ivan Vidal ◽  
Francisco Valera ◽  
Borja Nogales ◽  
Luciano Leonel Mendes ◽  
...  
Keyword(s):  
Network Performance ◽  
Access Network ◽  
World Population ◽  
The European Union ◽  
Available Bandwidth ◽  
Data Services ◽  
Cell Radius ◽  
Radio Access ◽  
Preliminary Validation ◽  
A Cell

Presently, a significant part of the world population does not have Internet access. The fifth-generation cellular network technology evolution (5G) is focused on reducing latency, increasing the available bandwidth, and enhancing network performance. However, researchers and companies have not invested enough effort into the deployment of the Internet in remote/rural/undeveloped areas for different techno-economic reasons. This article presents the result of a collaboration between Brazil and the European Union, introducing the steps designed to create a fully operational experimentation scenario with the main purpose of integrating the different achievements of the H2020 5G-RANGE project so that they can be trialed together into a 5G networking use case. The scenario encompasses (i) a novel radio access network that targets a bandwidth of 100 Mb/s in a cell radius of 50 km, and (ii) a network of Small Unmanned Aerial Vehicles (SUAV). This set of SUAVs is NFV-enabled, on top of which Virtual Network Functions (VNF) can be automatically deployed to support occasional network communications beyond the boundaries of the 5G-RANGE radio cells. The whole deployment implies the use of a virtual private overlay network enabling the preliminary validation of the scenario components from their respective remote locations, and simplifying their subsequent integration into a single local demonstrator, the configuration of the required GRE/IPSec tunnels, the integration of the new 5G-RANGE physical, MAC and network layer components and the overall validation with voice and data services.

scholarly journals Performance Model for Factory Automation in 5G Networks

2021 ◽  
Author(s):  
jiao wang ◽  
Jay Weitzen ◽  
Oguz Bayat ◽  
Volkan Sevindik ◽  
Mingzhe Li
Keyword(s):  
Mobile Networks ◽  
Data Exchange ◽  
Network Performance ◽  
Access Network ◽  
Service Level Agreement ◽  
Service Level ◽  
Performance Model ◽  
Factory Automation ◽  
Public Network ◽  
Radio Access

Abstract The fifth generation (5G) of mobile networks is emerging as a key enabler of modern factory automation (FA) applications that ensure timely and reliable data exchange between network components. Network slicing (NS), which shares an underlying infrastructure with different applications and ensures application isolation, is the key 5G technology to support the diverse quality of service requirements of modern FA applications. In this article, an end-to-end NS solution is proposed for FA applications in a 5G network. Regression approaches are used to construct a performance model for each slice to map the service level agreement to the network attributes. Interference coordination approaches for switched beam systems are proposed to optimize radio access network performance models. A case study of a non-public network is used to show the proposed NS approach.

scholarly journals Mobile Edge Service for Intersystem Handover

2018 ◽  
Vol 7 (3.13) ◽  
pp. 141 ◽  
Author(s):  
Evelina Pencheva ◽  
Ivaylo Atanasov ◽  
Denitsa Kireva-Mihova ◽  
Ventsislav Trifonov
Keyword(s):  
Network Performance ◽  
Access Network ◽  
End Users ◽  
Radio Access ◽  
Party Control ◽  
Application Programming ◽  
State Models ◽  
Multi Access ◽  
Programming Interfaces

Multi-access Edge Computing (MEC) appears to be an integrating technology for radio access networks to enhance the access capacity, optimize network performance and improve quality of experience for end users. MEC distributes cloud capabilities for storage and computing in the radio access network, close to the end users. As far as the development of advanced Application Programming Interfaces is a key area, we propose a new mobile edge service that enables 3rd party control on intersystem handover. The proposed service enables authorized applications to initiate intersystem handover following specific policy. The service is described by information flows illustrating the basic functionality, data models that provide mediation functions, and handover state models considering some implementation issues. 

scholarly journals Architecture for IP-Based Next Generation Radio Access Network

2010 ◽  
pp. 61-76
Author(s):  
Ram Dantu ◽  
Parthasarathy Guturu
Keyword(s):  
Traffic Control ◽  
Access Network ◽  
Real Life ◽  
Next Generation ◽  
Dynamic Configuration ◽  
High Performing ◽  
Network Bandwidth ◽  
Radio Access ◽  
Real Life Data

High call volumes due to novel mobile data applications necessitate development of next generation wireless networks centered on high performing and highly available radio access networks (RANs). In this chapter, the authors present an innovative IP-based wireless routing architecture (for a RAN) with mechanisms for seamless handoff operations and high Quality of Service (QOS). Algorithms for dynamic configuration of the RAN, and efficacious network bandwidth management through traffic control are also presented. The authors establish the superiority of their system with real-life data indicating significant cost and availability improvements with our system over the traditional networks.

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